A Facile Preparation of Flavones Using Nonaqueous Cation-Exchange Resin

Article abstract of DOI:10.1246/bcsj.60.1919

Flavone was prepared from 1-(2-hydroxyphenyl)-3-phenyl-1,3-propanedione by using nonaqueous cation exchange resin in a nearly quantitative yield.Of several reaction media, isopropyl alcohol gave the best result.Eight substituted flavones were also synthesized from the corresponding diketones in satisfactory yields.